Lamp-heater.



P. CROSLEY, In.

LAMP HEATER.

APPLICATION FILED Aua.25. 1916- 1 ,27 1 ,439. Patented July 2, 1918.

flian asses: fizvento? Afforney.

rowfnI. onostnir, an; or, CINCINNATI; onto,

' AMP E'ATERQ Toall whom it may concern:

. Be it known thatLPownL .CRosLEY, Jr.,a citizen of the UnitedStates,:and a resident of Cincinnati, iii-the county of .Hamilton andState of o11io,.:h invented certain new and useful:Improvementsin Lamp-Heaters, of which the following iszaspecifi cation.. Y

My invention relates to heating: attachments for or oil-lamps, forobtaining'an ample distribution of the heat from the lamp in the lowerpart of the room; and

he objectis "to provide an extremely simple construction and to improvethe operatlon' how the device is used on the top of the chimney of alamp, whether it be a gas, oil or other lamp, and also showing how thedevice may heat the contents of a small vessel;

Fig. 2 is a vice; and

Fig. 3 is a vertical cross section on a plane corresponding to the line33 of Fig. 2.

As I prefer to construct my invention there is a central receiving anddistributing chamber 1 with a closed top 2 and a bottom having anopening 3. A plurality of tubes l lead from the sides of the chamber 1radially outward in a substantially horizontal bottom plan view of thedeplane at intervals therearound. Continuous etween the adjacent tubes 4from the walls of the chamber 1 out to the ends of the tubes are webs 5.

When the device has the bottom of its chamber 1 resting on the upperrimof the lamp chimney 6, there is direct communication between theinterior of the chimney and the interior of the chamber 1; so that thesuperheated air from the lamp 6 passes directly into the chamber 1 andis distributed to the radial tubes l, through which it passeshorizontally outward, heating these tubes and the adjacent webs 5. Thisdevice, like other devices of this character, thus heats the air of theroom on account of the air coming into contact with the exteriors of thetubes 4 and the webs 5; especiallythe air coming in contact with thelower sides of V "Specification bf tetteri raien't, K'Patented Ju i /1Application filed augustzs, 1916. Serial ivo.117, i If come as hot asthe air p'assing through the tubes. The result? is that thesuperheatedair, where it emerges from the endsf-ofthe tubes 4, will pass nearlydirectlyoutward along with the less heated air,-as it passes away fromthe sides of thetubes and webs,

especially that passingfromunder the tubes and-webs, and all-of theheated air will have a more nearly 'horizontal direction Thus,-

the heated: air is more thoroughly distributed in the lower regionsoft-he room, whereit needed. 7

- Another advantage of the horizontal direction of the tubes l over anydecidedly downward'direction of the tubes is the better draft given tothe lamp. a

As shown in Fig. 1, the flat top 2 may receive a vessel such as the cup7 to be used in heating small quantities of liquid.

Not only have I constructed my device to meet the above requirements,but I have provided this construction in a very simple form. The entiredevice consists of only two plates of metal pressed to such shape thatthey form, respectively, the upper and lower half of the device. Thelower plate 8 has the cupped center to form the bottom of the chamber 1,with channels diverging therefrom to form the bottoms of the tubes 4,and these channels being connected by plane parts. i The central part ofthe bottom of the cupped center is pressed upward,'so

that a downwardly extended bead 9 is formed around the edge. Thisprevents the device from sliding off the lamp chimney,

and the opening 3 is of adiameter somewhat less than that of the centralpart inside the bead, so as to leave an annular surface 10 of someradial width, so that the device may fit chimneys of difierentdiameters.

The upper plate 11 is formed like the lower plate 8 in every way,exceptthat the center is not provided with an opening. Thus, both plates8 and 11 may be cut out and formed by the same punches and dies. Thesetwo plates thus formed, are inversely assembled concentric with eachother, with the channels and plane parts of each plate meeting thechannels and plane parts,.respectively, of the other plate. so that thechannels form the tubes 4 and the intimately contacting plane parts formthe webs: 5. The plates are fastened together within the limits oftheseplane parts or webs. They I have provided a device that isextremely, snnple, lnexpensive 1n first cost; not halqIe to. g t putpforder in use; adapted to permit an e cilifldfid'iiifiif of the lamp foi"11;; 1ting purposes on account ,ofitlleizflee, draft afforded throughthe substantially horizontali passages; andtadaptedto produce ampleheating: efieqt under ino derate, conditions withdut-obljectionablycontaminating the air tliusiheated.= I a .t s, Havzin fully, describedmy invention, whats; n as; new and desire to secure by LettersRaten'tjs: 1. I .r HAS. a new,and,-,i nipr0tied articleof.-..n1anufactniie, a lamp; heater; comprising two sub: stanitially cic lar. 12lates,.-.of- .metal; teach formed with a cupped center andchannels rad t it rfirml- Eli ette ea rc nt st antially plane partsbetween the channels and extending from the outside of the cupped centerentirely out to the ends of .theehannels, said plates beingsubstantially identical except that one of them has an opeg i ng il ritscupped center, andsaid plates being; inversely assembled concentric to'each i other, .wherebycthe cupped centers form a distinct centralreceiving and distributing chamber, and with the channelslof each platemeeting the channels oi the other. pl'ate,l and said plane. partsv.ofthe respective plates being secured against eachrotherr wherebydistinct substantially tubular passages are f rmeLd,;radiating, fromsaid receiving and distributing chamber. q

POVVEL OROSLEY, JR.

I Witnessesz. v

JAMES N. RAMSEY.

Copies of this be addressing the dlimlniss ioner of l 'at nts,

Washington, D. 0."

